<template>
  <div class="app-container">
    <el-card
      class="box-card"
      shadow="never"
      style="border:0"
      body-style="background-color: #f3f3f3;padding: 10px 0 0;"
    >
      <div slot="header">
        <span>菜单列表</span>
        <div style="float: right; margin: -5px 0">
          <el-button
            type="primary"
            size="small"
            icon="el-icon-plus"
            plain
            @click="handleAdd"
            v-permission="['sys:menu:add']"
            >新增菜单</el-button
          >
          <el-button
            type="success"
            size="small"
            icon="el-icon-download"
            plain
            v-permission="['sys:menu:export']"
            @click="handleExport"
            >菜单导出</el-button
          >
        </div>
      </div>
    </el-card>
    <div class="table-body">
      <div class="app-search">
        <div class="search-box" flex="dir:left cross-center">
          <!--          <div class="div-box">-->
          <!--            <el-button size="small">分类筛选</el-button>-->
          <!--            <el-button size="small">清除分类</el-button>-->
          <!--          </div>-->
          <div class="div-box" flex="dir:left">
            <div flex="cross:center" style="height: 32px;">创建时间：</div>
            <el-date-picker
              size="small"
              type="daterange"
              value-format="yyyy-MM-dd"
              range-separator="至"
              start-placeholder="开始日期"
              end-placeholder="结束日期"
              @change="changeDate"
              v-model="datetime"
            >
            </el-date-picker>
          </div>
          <div class="input-item div-box" flex="cross-center">
            <div>
              <el-input
                size="small"
                placeholder="请输入ID或者名称搜索"
                v-model="search.keyword"
                clearable
                @clear="toSearch"
                @keyup.enter.native="toSearch"
              >
                <el-button
                  slot="append"
                  icon="el-icon-search"
                  @click="toSearch"
                ></el-button>
              </el-input>
            </div>
          </div>
          <div class="div-box clear-where" flex="cross:center">
            <el-button
              class="filter-item"
              size="small"
              icon="el-icon-refresh-left"
              @click="clearSearch"
              >重置</el-button
            >
          </div>
        </div>
      </div>
      <div class="app-batch" flex="dir:left cross:center">
        <!--        <el-checkbox @change="checkedChange" v-model="isAllChecked" style="margin-right: 10px;">修改全部</el-checkbox>-->
        <template>
          <el-button
            size="mini"
            icon="el-icon-unlock"
            @click="handleStatus('0')"
            v-permission="['sys:menu:enable']"
            >启用</el-button
          >
        </template>
        <template>
          <el-button
            size="mini"
            icon="el-icon-lock"
            @click="handleStatus('1')"
            v-permission="['sys:menu:disable']"
            >禁用</el-button
          >
        </template>
        <el-button
          size="mini"
          type="danger"
          plain
          icon="el-icon-delete"
          @click="handleDelete"
          v-permission="['sys:menu:delete']"
          >批量删除</el-button
        >
      </div>
      <el-table
        :data="data"
        :header-cell-style="headerCellStyle"
        :cell-style="cellStyle"
        row-key="id"
        border
        ref="multipleTable"
        size="small"
        @selection-change="selectionChange"
        :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
      >
        <el-table-column type="selection" width="55"> </el-table-column>
        <el-table-column label="菜单名称" :show-overflow-tooltip="true">
          <template slot-scope="scope">
            <span>{{ scope.row.name }}</span>
          </template>
        </el-table-column>
        <el-table-column label="图标">
          <template slot-scope="scope">
            <svg-icon :icon-class="scope.row.icon" />
          </template>
        </el-table-column>
        <el-table-column label="组件路径">
          <template slot-scope="scope">
            <span>{{ scope.row.path }}</span>
          </template>
        </el-table-column>
        <el-table-column label="类型">
          <template slot-scope="scope">
            <el-tag size="small">{{ scope.row.typeName }}</el-tag>
          </template>
        </el-table-column>
        <el-table-column label="排序">
          <template slot-scope="scope" width="30">
            <span v-if="!isEdit" @click="editSort(scope.row)">{{
              scope.row.sort
            }}</span>
            <el-input
              v-if="isEdit"
              style="width:60px"
              v-model="scope.row.sort"
            ></el-input>
            <el-button
              v-if="!isEdit"
              class="edit-sort"
              type="text"
              @click="editSort(scope.row)"
            >
              <svg-icon icon-class="edit"></svg-icon>
            </el-button>
            <el-button
              v-if="isEdit"
              class="edit-sort"
              type="text"
              @click="submitSort(scope.row)"
            >
              <svg-icon icon-class="add"></svg-icon>
            </el-button>
          </template>
          <div style="display: flex;align-items: center">
            <el-input
              style="min-width: 70px"
              type="number"
              size="mini"
              class="change"
              v-model="sort"
              autocomplete="off"
            ></el-input>
            <el-button
              class="change-quit"
              type="text"
              style="color: #F56C6C;padding: 0 5px"
              icon="el-icon-error"
              circle
              @click="quit()"
            ></el-button>
            <el-button
              class="change-success"
              type="text"
              style="margin-left: 0;color: #67C23A;padding: 0 5px"
              icon="el-icon-success"
              circle
              @click="changeSortSubmit(scope.row)"
            >
            </el-button>
          </div>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="text"
              icon="el-icon-edit"
              @click="rowUpdate(scope.row)"
              v-permission="['sys:menu:edit']"
              >修改
            </el-button>
            <el-button
              size="mini"
              type="text"
              icon="el-icon-plus"
              @click="handleAdd(scope.row)"
              v-permission="['sys:menu:add']"
              >新增子项
            </el-button>
            <el-button
              size="mini"
              type="text"
              icon="el-icon-delete"
              @click="rowDelete(scope.row)"
              v-permission="['sys:menu:delete']"
              >删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <!-- 新增或修改菜单对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24">
            <el-form-item label="上级菜单" prop="parentId">
              <treeselect
                v-model="form.parentId"
                :options="menuOptions"
                :normalizer="normalizer"
                placeholder="选择上级菜单"
              />
            </el-form-item>
          </el-col>

          <el-col :span="24">
            <el-form-item label="菜单类型" prop="type">
              <el-radio-group
                v-model="form.type"
                size="mini"
                style="width: 178px"
              >
                <el-radio-button label="0">目录</el-radio-button>
                <el-radio-button label="1">菜单</el-radio-button>
                <el-radio-button label="2">按钮</el-radio-button>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item v-if="form.type != 2" label="菜单图标">
              <el-popover
                placement="bottom-start"
                width="460"
                trigger="click"
                @show="$refs['iconSelect'].reset()"
              >
                <IconSelect ref="iconSelect" @selected="selected" />
                <el-input
                  slot="reference"
                  v-model="form.icon"
                  placeholder="点击选择图标"
                  readonly
                >
                  <svg-icon
                    v-if="form.icon"
                    slot="prefix"
                    :icon-class="form.icon"
                    class="el-input__icon"
                    style="height: 32px;width: 16px;"
                  />
                  <i
                    v-else
                    slot="prefix"
                    class="el-icon-search el-input__icon"
                  />
                </el-input>
              </el-popover>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="菜单名称" prop="name">
              <el-input v-model="form.name" placeholder="请输入菜单名称" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="显示排序" prop="sort">
              <el-input-number
                v-model="form.sort"
                controls-position="right"
                :min="0"
              />
            </el-form-item>
          </el-col>
          <!--          <el-col :span="12">-->
          <!--            <el-form-item v-if="form.type != 2" label="是否外链">-->
          <!--              <el-radio-group v-model="form.isFrame" size="mini">-->
          <!--                <el-radio-button label="0">是</el-radio-button>-->
          <!--                <el-radio-button label="1">否</el-radio-button>-->
          <!--              </el-radio-group>-->
          <!--            </el-form-item>-->
          <!--          </el-col>-->
          <el-col :span="12">
            <el-form-item v-if="form.type != 2" label="路由地址" prop="path">
              <el-input v-model="form.path" placeholder="请输入路由地址" />
            </el-form-item>
          </el-col>
          <!--          <el-col :span="12" v-if="form.type == 1">-->
          <!--            <el-form-item label="组件路径" prop="component">-->
          <!--              <el-input v-model="form.component" placeholder="请输入组件路径"/>-->
          <!--            </el-form-item>-->
          <!--          </el-col>-->
          <el-col :span="12">
            <el-form-item v-if="form.type != 0" label="权限标识">
              <el-input
                v-model="form.permission"
                placeholder="请权限标识"
                maxlength="50"
              />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="菜单状态">
              <el-radio-group v-model="form.status" size="mini">
                <el-radio-button label="0">启用</el-radio-button>
                <el-radio-button label="1">禁用</el-radio-button>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import flex from "@/styles/flex.css";
import {
  getList,
  saveOrUpdateMenu,
  getAsyncList,
  getSysMenuById,
  deleteMenu,
  statusMenu,
  exportMenu
} from "@/api/system/menu";
import { downloadFile } from "@/utils";
import Treeselect from "@riophae/vue-treeselect";
import IconSelect from "@/components/IconSelect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";
// 权限判断指令
import permission from "@/directive/permission/index";

export default {
  components: { Treeselect, IconSelect },
  directives: { permission },
  data() {
    return {
      data: [],
      menuOptions: [],
      selectionList: [],
      // 查询参数
      search: {
        keyword: undefined,
        startDate: undefined,
        endDate: undefined
      },
      datetime: undefined,
      //弹窗标题
      title: "",
      // 是否显示弹出层
      open: false,
      sort: 0,
      // 表单参数
      form: {},
      // 显示状态数据字典
      visibleOptions: [],
      // 菜单状态数据字典
      statusOptions: [],
      multipleSelection: [],
      isEdit: false,
      rules: {
        name: [
          { required: true, message: "请输入菜单名称", trigger: "blur" },
          { min: 2, max: 20, message: "长度在 2 到 20 个字符", trigger: "blur" }
        ],
        parentId: [
          { required: true, message: "请选择上级菜单", trigger: "change" }
        ]
      }
    };
  },
  created() {
    this.init();
  },
  computed: {
    ids() {
      let ids = [];
      this.selectionList.forEach(ele => {
        ids.push(ele.id);
      });
      return ids.join(",");
    }
  },
  methods: {
    init() {
      this.fetchData();
    },
    // 选择图标
    selected(name) {
      this.form.icon = name;
    },
    // 更改表头样式
    headerCellStyle({ row, column, rowIndex, columnIndex }) {
      if (rowIndex === 0) {
        return "background-color: #fafafa;color: #000;font-weight: 500; text-align: center";
      }
    },
    // 更改表头样式
    cellStyle({ row, column, rowIndex, columnIndex }) {
      if (columnIndex !== 1 && columnIndex !== 3) {
        return "text-align: center";
      }
    },
    fetchData() {
      this.listLoading = true;
      getList(this.search).then(response => {
        this.data = response.data;
        this.listLoading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        // menuId: undefined,
        menuOptions: [],
        parentId: 0,
        // menuName: undefined,
        icon: undefined,
        type: 0,
        sort: 1,
        // orderNum: undefined,
        isFrame: "1",
        visible: "0",
        status: "0"
      };
      // this.resetForm("form");
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      // this.getTreeSelect();
      this.loadMenuOptions();
      if (row != null) {
        this.form.parentId = row.id;
      }
      this.open = true;
      this.title = "新增菜单";
    },
    async loadMenuOptions() {
      getAsyncList().then(response => {
        this.menuOptions = [];
        const menu = { id: -1, label: "主类目", children: [] };
        menu.children = response.data;
        this.menuOptions.push(menu);
      });
    },
    //后台返回的数据如果和Vue Treeselect要求的数据结构不同，需要进行转换
    normalizer(node) {
      //将里面children=[]为空的时候去掉（如果不加的这句的话 如果里面children属性值为空 数状选择器里就给他默认有下一层  可里面没有所以显示空数据）
      if (node.children && !node.children.length) {
        delete node.children;
      }
      // 将后台传来的数组进行修改
      return {
        id: node.id,
        label: node.label,
        children: node.children
      };
    },
    /** 修改按钮操作 */
    rowUpdate(row) {
      this.reset();
      this.loadMenuOptions();
      getSysMenuById(row.id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改菜单";
      });
    },
    rowDelete(row) {
      this.$confirm('是否确认删除名称为"' + row.name + '"的数据项?', "警告", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      })
        .then(function() {
          return deleteMenu(row.id);
        })
        .then(() => {
          this.init();
          this.successMsg("删除成功");
        })
        .catch(function() {});
    },
    /** 批量删除操作 */
    handleDelete() {
      if (this.selectionList.length === 0) {
        this.$message.warning("请选择大于一条数据");
        return;
      }
      this.$confirm(
        `确认删除选中的${this.selectionList.length}条数据?`,
        "警告",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      )
        .then(() => {
          return deleteMenu(this.ids);
        })
        .then(() => {
          this.init();
          this.successMsg("删除成功");
        })
        .catch(function() {});
    },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          saveOrUpdateMenu(this.form).then(response => {
            if (response.code === 200) {
              this.successMsg("操作成功");
              this.open = false;
              this.init();
            }
          });
        }
      });
    },
    selectionChange(list) {
      this.selectionList = list;
    },
    handleStatus(status) {
      if (this.selectionList.length === 0) {
        this.$message.warning("请选择大于一条数据");
        return;
      }
      let statusName = "";
      if (status == "0") {
        statusName = "启用";
      } else if (status == "1") {
        statusName = "禁用";
      }
      this.$confirm(
        `确认${statusName}选中的${this.selectionList.length}条数据?`,
        "警告",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      )
        .then(() => {
          return statusMenu(this.ids, status);
        })
        .then(() => {
          this.init();
          this.successMsg("操作成功");
        })
        .catch(function() {});
    },
    changeDate() {
      if (this.datetime) {
        this.search.startDate = this.datetime[0];
        this.search.endDate = this.datetime[1];
      } else {
        this.search.startDate = null;
        this.search.endDate = null;
      }
      this.init();
    },
    toSearch() {
      this.init();
    },
    clearSearch() {
      this.datetime = [];
      this.search.keyword = "";
      this.search.endDate = null;
      this.search.startDate = null;
      this.init();
    },
    handleExport() {
      exportMenu().then(response => {
        downloadFile(response, "menu", "xlsx");
      });
    },
    editSort(row) {
      this.sort = row.sort;
      this.isEdit = true;
    },
    submitSort(row) {
      saveOrUpdateMenu(row).then(response => {
        if (response.code === 200) {
          this.successMsg("操作成功");
          this.init();
          this.isEdit = false;
        }
      });
    }
  }
};
</script>

<style lang="scss" scoped>
@import "@/styles/mate.scss";
</style>
